1210220220329 has 2 divisors, whose sum is σ = 1210220220330. Its totient is φ = 1210220220328.

The previous prime is 1210220220301. The next prime is 1210220220347. The reversal of 1210220220329 is 9230220220121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 849051673600 + 361168546729 = 921440^2 + 600973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210220220329 - 2²⁰ = 1210219171753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210220220298 and 1210220220307.

It is not a weakly prime, because it can be changed into another prime (1210220220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605110110164 + 605110110165.

It is an arithmetic number, because the mean of its divisors is an integer number (605110110165).

Almost surely, 2^{1210220220329} is an apocalyptic number.

It is an amenable number.

1210220220329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210220220329 is an equidigital number, since it uses as much as digits as its factorization.

1210220220329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 1210220220329 in words is "one trillion, two hundred ten billion, two hundred twenty million, two hundred twenty thousand, three hundred twenty-nine".